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Lynna [10]
3 years ago
7

HELPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!! LCD of 9/14 and 2/21

Mathematics
1 answer:
lions [1.4K]3 years ago
7 0
Least Common Denominator <span>(9/14 and 2/21)

</span><span>The least common denominator is equal to the least common multiple of the denominators: 14 and 21 
</span>The multiples of 14 are: 14, 28, 42, 56, ...
The multiples of 21 are: 21, 42, 63, ...

The least common multiple of 14 and 21, therefore, is 42, and the least common denominator of (9/14 and 2/21) is also 42<span>

Answer:
</span>\boxed{42}\end{array}}\qquad\quad\checkmark
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4 years ago
Hey! i just need you to tell me how you got your answer! thank you!
Yakvenalex [24]

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5 0
4 years ago
8. The talent show committee sold a total of 530 tickets in advance. Student
Alex Ar [27]

Answer:

Number of students tickets sold = x = 380 tickets

Number of adults tickets sold = y = 150 tickets

Step-by-step explanation:

Let

Number of students tickets sold = x

Number of adults tickets sold = y

x + y = 530 (1)

3x + 4y = 1740 (2)

From (1)

x = 530 - y

Substitute x = 530 - y into (2)

3x + 4y = 1740

3(530 - y) + 4y = 1740

1590 - 3y + 4y = 1740

- 3y + 4y = 1740 - 1590

y = 150

Substitute y = 150 into (1)

x + y = 530

x + 150 = 530

x = 530 - 150

x = 380

Number of students tickets sold = x = 380 tickets

Number of adults tickets sold = y = 150 tickets

3 0
3 years ago
What is the property of this
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A square garden is 10ft long. How much will it cost to install a fence around the garden if the fence costs $1.75 per foot
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